Environment-friendly degradable plastic and preparation method thereof

An environmentally friendly technology for degradable plastics, applied in the field of polymer materials, can solve the problems of poor mechanical properties of degradable plastics, and achieve the effect of improving thermal stability and comprehensive improvement

Pending Publication Date: 2022-05-13
深圳市明星盛包装集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type of green environmental protective material has several benefits compared with existing ones such as being made from biodegradeable or safe substances like paper pulp. These improvements include increased purification efficiency during decomposition while maintaining good quality product properties for better performance at different uses environments.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the quality or durability of degratable plastic material for use in different industries due to its lacking long term environmental concerns like disposal issues caused by waste accumulation after usage over time.

Method used

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preparation example Construction

[0022] The invention provides an environment-friendly degradable plastic and a preparation method thereof. The degradable plastic comprises the following components in parts by weight: 55-70 parts of polybutylene adipate terephthalate, polybutylene adipate 10-20 parts of propyl ester, 10-15 parts of modified lignin, 5-6 parts of montmorillonite, 3-4 parts of compatibilizer, 0-1 part of lubricant, 0-1 part of light stabilizer; preferred weight Part ratio: 65 parts of polybutylene adipate terephthalate, 15 parts of polypropylene carbonate, 10 parts of modified lignin, 5 parts of montmorillonite, 3 parts of compatibilizer, 1 part of lubricant, 1 part of light stabilizer, so that the overall performance of degradable plastics is good after being optimized in this way.

[0023] In some embodiments of the present invention, the number average molecular weight Mn of the polybutylene adipate terephthalate is 4.26×10 4 g / mol, polydispersity index 2.41; The number average molecular weig

Embodiment 1

[0037] The raw materials of environment-friendly degradable plastics include the following components in parts by weight:

[0038] 55 parts of polybutylene adipate terephthalate, 20 parts of polypropylene carbonate, 15 parts of modified lignin, 5 parts of montmorillonite, 3 parts of compatibilizer, 1 part of lubricant, 1 part of light stabilizer share.

Embodiment 2

[0040] The raw materials of environment-friendly degradable plastics include the following components in parts by weight:

[0041] 65 parts of polybutylene adipate terephthalate, 15 parts of polypropylene carbonate, 10 parts of modified lignin, 5 parts of montmorillonite, 3 parts of compatibilizer, 1 part of lubricant, 1 part of light stabilizer share.

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Abstract

The invention discloses an environment-friendly degradable plastic and a preparation method thereof. The degradable plastic comprises the following components in parts by weight: 55-70 parts of poly (butylene adipate-co-terephthalate), 10-20 parts of polypropylene carbonate, 10-15 parts of modified lignin, 5-6 parts of montmorillonite, 3-4 parts of a compatibilizer, 0-1 part of a lubricant and 0-1 part of a light stabilizer. The environment-friendly degradable plastic belongs to an environment-friendly material, the main raw materials are degradable materials, the auxiliaries are nontoxic, harmless and environment-friendly, the degradable plastic can be fully degraded under the composting condition, the environment-friendly degradable plastic provided by the invention belongs to blending type degradable plastic, and the modified materials such as polypropylene carbonate, modified lignin and montmorillonoid are doped, so that the environment-friendly degradable plastic can be fully degraded under the composting condition. The thermal stability, the gas barrier property, the breaking strength and the elasticity of the pure poly (butylene adipate/terephthalate) material are improved, so that the comprehensiveness is greatly improved, and the pure poly (butylene adipate/terephthalate) material can be applied to various use occasions.

Description

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Claims

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Application Information

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Owner 深圳市明星盛包装集团有限公司
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